opposite of "surface extend" (like move face), can't do it with "trim"

hello, i'm sure there are other people who looked for a command to do the exact opposite of "extend surface". i mean trimming edges of a surface like using "move face" on a solid body, without need of other surface or planes. it may be called "shorten" or "shrink" a surface maybe... i hope i could make myself clear, any ideas?

SolidworksSurfacing